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Improving driver safety: How to prevent streetlight glare in the new world of LED lighting
Date:7/18/2014

they recommend minimizing both the amount of light hitting at the eyes and the luminance contrast between the streetlights and the background, which can be accomplished through good optical design of the LED light unit and careful placement of each streetlight.

While more follow-up work would be needed before the team's results could guide industry standards, the researchers hope their model could still be put to immediate use by design and construction firms working on LED streetlight replacements and installations.

Going forward, the team plans an interdisciplinary investigation of the physiological changes caused by glare, which could allow the researchers to ditch the 9-point rating scale in favor of more concrete measurements of discomfort such as eye movement and pupil size.

"Glare has a strong effect on the normal visual function, causing a serious threat to safety. And the accumulative effect of glare also threatens the physiological health of the human body," Lin said. "So it's very important to reduce the glare on roadways."


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Contact: Angela Stark
astark@osa.org
202-416-1443
The Optical Society
Source:Eurekalert  

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